1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeka57 [31]
3 years ago
11

Chem helpcalculate the wavelength of an electromagnetic wave with a frequency of (in pic)​

Chemistry
1 answer:
olchik [2.2K]3 years ago
4 0

we have,

wavelenght=c/f

where c= 3×10^8 m/s

f=6.3×10^12 s^-1

so wavelength=(3×10^8)/(6.3×10^12)

=0.476×10^-4 m

You might be interested in
What is the name of the ionic compound rbcl?
Kamila [148]
<span>Rubidium Chloride is the answer i believe </span><span /><span>
</span>
3 0
3 years ago
During a solar flare, it is most likely that
ludmilkaskok [199]

Answer:

During a solar flare, the built up magnetic energy n the solar atmosphere is released at once. If a strong solar flare hits the earth, it is most possible that it will destroy the electronics. It is not expected to effect any human beings unless they are travelling towards the outer space are living at higher altitudes.

It can lead to skin can in case of extreme exposures.

I hope the answer is helpful.

Thanks for answering.

6 0
3 years ago
Read 2 more answers
Select all correct answers.
Jlenok [28]

Answer: It showed that all atoms contain electrons.

Explanation:

  • J.J. Thomson's experiments inside a cathode ray tube in the presence of an electric field showed that all atoms contain tiny negatively charged subatomic particles "electrons".
  • Also, Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup."
  • Furthermore, Rutherford's gold foil experiment showed that the atom is mostly empty space with a tiny positively-charged nucleus.
  • Then, Rutherford proposed the nuclear model of the atom based on these results.
7 0
3 years ago
SnO2 + 2 H2 ——&gt; Sn + 2 H2O
SpyIntel [72]

Answer:

0.15g

Explanation:

Given parameters:

Number of molecules of water = 1.2 x 10²¹ molecules

Unknown:

Mass of SnO₂  = ?

Solution:

To solve this problem, we have to work from the known to the unknown specie;

             SnO₂   +    2H₂    →   Sn  +   2H₂O

Ensure that the equation given is balanced;

       

Now,

          the known species is water;

                  6.02 x 10²³ molecules of water  = 1 mole

                   1.2 x 10²¹ molecules of water  = \frac{1.2 x 10^{21} }{6.02 x 10^{23} }    = 0.2 x 10⁻²moles

Number of moles of water  = 0.002moles

           From the balanced chemical equation:

         

             2 mole of water is produced from 1 mole of    SnO₂  

           0.002 moles of water will be produced from \frac{0.002}{2}  = 0.001moles

To find the mass;

           Mass  = number of moles x molar mass

Molar mass of  SnO₂ = 118.7 + 2(16) = 150.7g/mol

        Mass  =  0.001 x 150.7 = 0.15g

3 0
3 years ago
Which type of front does not move <br><br>​
shusha [124]
Stationary Front: a front that is not moving. When a warm or cold front stops moving, it becomes a stationary front.
5 0
3 years ago
Other questions:
  • A 600g boulder has a density of 8g/cm3. What is the volume of the boulder?
    10·1 answer
  • What does this diagram represent?
    11·1 answer
  • 20 POINTS!<br><br> what would be an example of an everyday household acid and base?
    13·2 answers
  • Which statement is true for all equilibrium systems?
    15·2 answers
  • What is the formula for aluminum nitrite ?
    14·1 answer
  • At a given temperature, Kc=1.3x10-2 for reaction 1. What is the value of Kc for reaction 2? Reaction 1: begin mathsize 12px styl
    8·1 answer
  • How many grams of 02 are present in 7.49 L of oxygen gas?
    15·1 answer
  • Express in scientific notation. Choose the answer with the proper number of significant figures.
    5·1 answer
  • Which variable is measured each time the independent variable changes
    12·1 answer
  • How many moles are in 2.00 g of NaCl?7
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!